122657864 has 32 divisors (see below), whose sum is σ = 263193600. Its totient is φ = 52496640.

The previous prime is 122657837. The next prime is 122657867. The reversal of 122657864 is 468756221.

It is not an unprimeable number, because it can be changed into a prime (122657867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81632 + ... + 83120.

It is an arithmetic number, because the mean of its divisors is an integer number (8224800).

Almost surely, 2^122657864 is an apocalyptic number.

122657864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

122657864 is an abundant number, since it is smaller than the sum of its proper divisors (140535736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122657864 is a wasteful number, since it uses less digits than its factorization.

122657864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2973 (or 2969 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 122657864 is about 11075.1010830601. The cubic root of 122657864 is about 496.8574420387.

The spelling of 122657864 in words is "one hundred twenty-two million, six hundred fifty-seven thousand, eight hundred sixty-four".